Wheel.



P. HAERST. WHEEL. APPLIGATION FILED mm 1', 1907.

Patented Mar. 19, 1912.

2 SHEETS-SHEET l.

P. HAERST.

WHEEL.

APPLICATION FILED JULY 1, 1907.

1,020,901. Patented Mar. 19,1912.

c;/ -5 I g 6 and. defined in the appended claims.

PIERRE HAEBST, OF CHICAGO, ILLINOIS.

WHEEL.

Specification of Letters Patent.

Patented Mar. 10, 1912.

Application filed July 1, 1907. Serial No. 381,603.

To all whom it may concern:

Be it known that I, PllfiRRE HAERST, a citizen of the United States, anda resident of Chicago, Cook county, Illinois, have invent- 5 ed certainnew and useful Improvements in Wheels; and I do hereby declare that the:following is a full, clear, and exact descrip-.

tion of the same, reference being had to the accompanying drawings, andto the letters wheels and particularly to that class having resilientspokes. I

Wheels heretofore constructed employing spring or resilient spokes haveoften had the spokes pivoted either at the hub or rim end orat bothends. Where spring or resilient spokes are pivoted to the hub or rim theaction of the spokes at the pivot shears the pivot bolts in a very shorttime thus making such wheels impractical. Again where the spring spokesare pivoted at the hub considerable damage is caused to the spokes andhub each time the vehicle is suddenly started or stopped as the hubtwists or turns a partof a revolution relatively of the rim causingundue straining. Lateral stress is also destructive to sucha wheel.

It is an object of this invention to provide a wheel having springspokes in which the spokes are rigidly secured to the hub and the'rim.

It is a further object of-this invention to provide novel means forsecuring the spokes to the hub and rim and in which any one or morespokes may be independently removed and replaced and to providetightening means for the spokes at the hub.

40 It isan important object Ofthis inventio to provide a spring spokecomprising at least three bends or folds and in which the ends areattached to the rim and hub out of radial alinement thereby utilizingthe resiliency of the spokes to the utmost, and equalizing the stress onall the folds of the spokes and increasing the efficiency of the wheel.

.The'invention relates to the matters hereinafter described and morefully pointed out On the drawings: Figure 1 is a side elevation of a.wheel embodying my mvention. Fig. 2 1s an enlarged section on lines 2-2of Fig. 1. Fig. 3 is an enlarged fragmentary detail illustrating themode of attaching the of reference marked thereon, which form a spokesto the rim. Fig. 4 is an enlarged detail of the spoke. Fig. 5 is a side'elevation of a sectional hub embodied in my invention. Fig. 6 is across section of the hub on line 2-2 of Fig. 1. Fig. 7 is asideelevation showing the end of the spoke secured in place. Fig. 8 isan-enlarged perspective viewholf) the sector for securing the spoke tothe u As shown in said drawings: A indicates a channeled rim constructedof steel or any suitable material adapted to receive the rubber tread Atherein and which is rigidly secured on a felly A in any suitablemanner. Within the felly'is secured an inner rim A also of steel whichis also rigidly engaged in place. I

The hub B is preferably constructed of metal and is provided with boltholes spaced equal distances apart. The hub at the extremities of theholes is recessed to provide tapered or cone shaped sockets. The springspokes C employed are leaf spring or fiat spring bars of suitable lengthand strength which are of greatest width at.the huband taper to the rimend. Said resilient spokes at the rim end a conform to the inner pe-.end of the spoke with the flanges inclosing the sides of the spoke andbolts 0 extend through apertures in the cap, spoke and felly and arethreaded into the ring.

The hub is suitably faced on opposite sides thereof and clampingsections D engage the spokes to the hub. Said clamping sections compriseeach a top plate d having integral downwardly directed sector shapedside plates cl, provided with alined apertures therethrough whichregister with a y ertures in the hub and surrounding each of which onthe inner sides are cone/shaped bosses d which fit in correspondingsockets pr recesses in the hub, and act when forced into the sockets torigidly clamp the ends.

a of the spoke between the plate d and periphery of the hub. The sideplates (1 bind the spokes laterally. The side plates (1' of said membersdiverge slightly outwardly and are adapted to be sprung on the tread ofthe hub into place, after which the bossesare forced into the. socketstherebydrawing the top plates tight. As shown each top plate d of eachclamp is provided with a notch 03 at one end with which engages acomplementa] projection Z on the opposite end of an adjacent sectionafi'ording a very secure and rigid construction, and'bolts d or othersuitable means secure and clamp the sections in position. Furthermore itwill be noted that the spokes aregreater in. size or width at the hubthan at the rim. This is very important especially with aspring orresilient spoke inasmuchas the strain is considerably greater at thehub'than at-the rim for almost invariably the spokesxheretofore havebroken at the hub.

The operation-is obvious from the conotheryvise than necessitated by theprior art,

ing the inner ends of the spokes to the hub,

said sections provided with interfitting recesses and projections andmeans for securing the clamping sections in place.

2. In Wheel the combination with the rim and hub provided with aperturestherein, of spring spokes having a pluralityv of bends therein, meansfor attaching the outer ends of the spokes to the rim, U-shap'edclamping" sections adapted to attach the hub ends of the spokes to thehub and provided with conical bosses to fit in. the apertures in the.hubs and means for forcing the bosses into the apertures. to drawthe'clamping pla'testo rigidly secure the ends of the spokes in place.

3. In a wheel a hub, a rim, springsp'okes curved at one' end to conformto the hub and directed outwardly having a plurality of curves betweenthe hub' ends and rim 'endsyclampingg members, each notched at "one endto receive the outwardly directed end of one of the spokes therein andprovided with a projection on the opposite end to fit'in-the recess inan adjacent clamping member.

In testimony whereof I have hereunto subscribed my name in the presenceof two subscribing witnesses.

PIERRE HAEYRST.

Witnesses:

C. W. HILLS, K. E. "HANNAH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Iatents,

Washington, D. C.

